Data reduction in a multi-node system

摘要

An advanced metering infrastructure comprises intermediate nodes. The intermediate nodes receive data from child nodes and aggregate the data according to groups of child nodes. The aggregation provides for a reduced version of the data. The reduction is performed based on groups determined by clustering. The reduced version of the data comprises data describing a group of measurements over time, such as a centroid in an n-dimension space, number of customers in the group, radius of the group and the like. The centroid may shift over time based on a consumption profile, such as low consumption at noon, and high consumption at evening. The consumption profiles may be determined in a learning phase, as well as shifting of centroids of each group over time.

主权项

1. A computerized system comprising:
at least one intermediate node; wherein said at least one intermediate node is connected to a plurality of sensors operable to monitor usage of a resource; wherein said at least one intermediate node is connected to an operator node; wherein said at least one intermediate node comprises:
a receiver configured to receive data from the plurality of sensors,
wherein the data is indicative of usage of the resource during a timeframe,wherein the data received from the plurality of sensors comprises a list of a predetermined number of values of monitored resource consumption values,wherein the list corresponds to a point in a space having n-dimensions; wherein n is the predetermined number of values; wherein the clustering module is configured to determine a cluster of the set of clusters based on distances between points in a space, andwherein the points correspond to the data;a clustering module configured to determine a set of clusters based upon the data; wherein each cluster of the set of clusters groups one or more sensors of the plurality of sensors;a data reduction module configured to determine a reduced data associated with a cluster of the set of clusters; the reduced data comprises:
a consumption profile indicative of usage of the resource during the timeframe; andidentifications of sensors grouped by the cluster; and a transmitter configured to send the reduced data.